Along with the focus on the heated "console wars" — especially between Sony's PlayStation 4 (out this "holiday" for $399) and Microsoft's Xbox One (available in November for $499) — action-heavy games garnered a lot of attention at this year's E3 gaming expo.

The massive trade show serves as a glimpse into the future of the multibillion-dollar interactive entertainment industry. Nearly 50,000 industry-only attendees from 102 countries swarmed the Los Angeles Convention Center to play games debuting over the coming months.

Yours truly spent three thumb-numbing days playing tomorrow's titles. Here are some of the most promising action-oriented console and PC titles to watch for in the near future:

'TITANFALL'

If the thought of climbing into a 24-foot tall 'mech in a war-torn future sounds like your idea of a good time, then you'll no doubt want to play Titanfall, currently in development at Respawn Entertainment and to be published by Electronic Arts next year. Coming to Xbox 360, Xbox One and Windows PC, the online-only first-person shooter fuses fast-paced multiplayer action with huge set pieces, allowing fighters to hop in and out of the giant Titans based on the task at hand. Piloting this three-years-in-the-making game is Vince Zampella, co-creator of Call of Duty: Modern Warfare.

'DESTINY'

Bungie Studios, the makers of Halo, are back with Destiny, a massively multiplayer first-person shooter with role-playing game (RPG) elements and a deep sci-fi backstory. To be published in 2014 by Activision — for PlayStation 3 and 4 and Xbox 360 and Xbox One — this year's E3 served as a "coming out" party for the game, with an extensive gameplay demo showed at the PlayStation press event (I scored some hands-on time with the game at the Activision booth, too). Destiny felt good, looked great and will no doubt be another epic hit for Bungie.

'CALL OF DUTY: GHOSTS'

Featuring an all-new story, near-photorealistic graphics and responsive controls, Activision's Call of Duty: Ghosts should satiate seasoned fans of the franchise and lure in new players, too. Along with access to the latest weaponry, this first-person military shooter also introduces Riley, a service dog who can serve as a recon tool (thanks to a camera strapped to his back) and attack unsuspecting enemies. Three unique single-player levels were shown, including a gripping underwater scene. The game will be out Nov. 5 for Xbox 360, PlayStation 3 and PC, followed by Xbox One and PlayStation 4 shortly thereafter.

'WATCH DOGS'

Ubisoft Montreal's Watch Dogs is set in the near future and played in an open-world Chicago. The third-person adventure follows a hacker named Aiden Pearce who taps into the city's central computer system, allowing him to digitally eavesdrop on mobile phone conversations, toy with traffic lights to slow down a dangerous target and access security cameras on demand. Along with the high-tech premise and "sandbox"-style, go-anywhere gameplay, Pearce is also agile, stealthy and well-connected in this gritty town. The game will be out in November for PlayStation 3 and 4, Xbox 360 and Xbox One, Nintendo Wii U and Windows PCs.

'BATTLEFIELD 4'

Now this was something you don't usually see at E3: a heated multiplayer match between 64 participants on PCs. This is precisely what Electronic Arts hosted at its booth for Battlefield 4, the first-person shooter sequel slated for an Oct. 29 launch on Xbox 360, PlayStation 3 and Windows (and followed by Xbox One and PlayStation 4 later in the year). Along with the "Angry Sea" single-player demo, the "Siege of Shanghai" multiplayer match ran at a smooth 60 frames per second, and showed off the massive maps, new vehicles and stunning graphics. The Commander Mode is back, too, allowing two players to face off in the situation room, with an eagle-eye view of the battlefield, on multiple platforms — including iPad and Android.